Sale 1:

https://backpack.tf/profiles/76561198335791307#!/compare/1543968000/1544054400

https://backpack.tf/profiles/76561198190016614#!/compare/1540944000/1544054400

SCM?

Sale 2:

https://backpack.tf/profiles/76561198337734785#!/compare/1545264000/1545350400

https://backpack.tf/profiles/76561198068064085#!/compare/1545177600/1545350400

Keys?

Sale 3:

https://backpack.tf/profiles/76561198068064085#!/compare/1545868800/1545955200

https://backpack.tf/profiles/76561198011321852#!/compare/1545782400/1545955200

Bulk

Sale 4:

https://backpack.tf/profiles/76561198061376237#!/compare/1546819200/1547683200

https://backpack.tf/profiles/76561198273681900#!/compare/1547596800/1547683200

Bulk QS?

Sale 5:

https://backpack.tf/profiles/76561198273681900#!/compare/1547683200/1547769600

https://backpack.tf/profiles/76561198151561701#!/compare/1547683200/1547769600

Sold for Aces Climbing + 10 keys

Climbing Mini:

https://backpack.tf/suggestion/5c809566d381723d78759c97

Suggestion for 11.5 keys

Total is 21.5 keys

Sale 6:

https://backpack.tf/profiles/76561198113302325#!/compare/1545955200/1546041600

https://backpack.tf/profiles/76561198232041512#!/compare/1545955200/1546041600

Sold with FoD Skullcracker for Beams Sky High(29)

End up below buyers

Sale 7:

https://backpack.tf/profiles/76561198018367883#!/compare/1546646400/1546992000

https://backpack.tf/profiles/76561198337734785#!/compare/1546560000/1546646400

QS

Sale 8:

https://backpack.tf/profiles/76561198080172780#!/compare/1550188800/1551744000

https://backpack.tf/profiles/76561198079363927#!/compare/1551657600/1551744000

Bulk

Sale 9:

https://backpack.tf/profiles/76561198125791160#!/compare/1547596800/1547683200

https://backpack.tf/profiles/76561198273681900#!/compare/1547596800/1547683200

Keys

Sale 10:

https://backpack.tf/profiles/76561198273681900#!/compare/1548979200/1549065600

https://backpack.tf/profiles/76561198133360797#!/compare/1548979200/1549324800

Untrace

Sale 11:

https://backpack.tf/profiles/76561198133360797#!/compare/1550620800/1550707200

https://backpack.tf/profiles/76561198099685235#!/compare/1550620800/1550707200

Bulk

Sale 12:

https://backpack.tf/profiles/76561198099685235#!/compare/1550707200/1550793600

https://backpack.tf/profiles/76561198148511293#!/compare/1550707200/1550793600

Bulk

Sale 13:

https://backpack.tf/profiles/76561198148511293#!/compare/1551052800/1551139200

https://backpack.tf/profiles/76561198053547683#!/compare/1551052800/1551139200

Sold for Searing Tyrant(36)

Sale 14:

https://backpack.tf/profiles/76561198053547683#!/compare/1551225600/1551312000

https://backpack.tf/profiles/76561198256438505#!/compare/1551225600/1551312000

Sold for 24 keys

Sale 15:

https://backpack.tf/profiles/76561198256438505#!/compare/1551225600/1551312000

https://backpack.tf/profiles/76561198061275415#!/compare/1551225600/1551312000

Sold for ~25 keys

Sale 16:

https://backpack.tf/profiles/76561198179253523#!/compare/1544313600/1544400000

https://backpack.tf/profiles/76561198012537041#!/compare/1544227200/1544400000

https://backpack.tf/profiles/76561198350879574#!/compare/1544227200/1544400000

Untrace / bulk

Sale 17:

https://backpack.tf/profiles/76561198088764747#!/compare/1544400000/1544486400

https://backpack.tf/profiles/76561198337734785#!/compare/1544400000/1544486400

QS

Sale 18:

https://backpack.tf/profiles/76561198337734785#!/compare/1544486400/1544572800

https://backpack.tf/profiles/76561198253741878#!/compare/1544486400/1544572800

Keys?

Sale 19:

https://backpack.tf/profiles/76561198253741878#!/compare/1544918400/1545004800

https://backpack.tf/profiles/76561198043436466#!/compare/1544832000/1545004800

Sold for 22 keys

Sale 20:

https://backpack.tf/profiles/76561198043436466#!/compare/1545436800/1545523200

https://backpack.tf/profiles/76561198348437692#!/compare/1545436800/1545523200

Can trace 7 keys

Sale 21:

https://backpack.tf/profiles/76561198348437692#!/compare/1545955200/1546041600

https://backpack.tf/profiles/76561198309237889#!/compare/1545955200/1546041600

Sold for HG Leadwear(19.5) + negligible sweets

Sale 22:

https://backpack.tf/profiles/76561198309237889#!/compare/1545955200/1546041600

https://backpack.tf/profiles/76561198322925208#!/compare/1545955200/1546041600

Sold with 5 keys for Ooze Stuntman

Use there

Sale 23:

https://backpack.tf/profiles/76561198322925208#!/compare/1545955200/1546041600

https://backpack.tf/profiles/76561198337734785#!/compare/1545955200/1546041600

Sold for 22 keys, QS

Sale 24:

https://backpack.tf/profiles/76561198337734785#!/compare/1546041600/1546128000

https://backpack.tf/profiles/76561198141538255#!/compare/1546041600/1546128000

Can trace 11 keys

Sale 25:

https://backpack.tf/profiles/76561198085921714#!/compare/1550016000/1550102400

https://backpack.tf/profiles/76561198070705963#!/compare/1550016000/1550102400

Sold for 23 keys

Sale 26 - 29:

https://marketplace.tf/items/30708;5;u101

$59.99 / $1.77 = 33.89 keys

$59.99 / $1.81 = 33.14 keys

$52.00 / $1.78 = 29.21 keys <--- https://bot.tf/stats/listings/Y8JL0WWY B/O of 26 keys

Total sales @:

19.5, 22, 22, 23, 24, 25, 26, 33.14, 33.89, 36 keys

Buyers up to 24 keys (only 1 tho)

Sellers down to 27 keys,

Going with 24 - 26 keys, too many lower sales for 1 buyer to counter.